Liquid Sky from a LaserJet 4P Polygon Mirror

This is the beginnings of a Liquid Sky
project.

The original laser diode, driver, and
lenses have been removed. The driver IC is
an apparently undocumented custom ASIC and
the diode is nearly useless (low power
invisible IR).

Ardiuno Uno 2kHz - 1MHz square wave pulse
generator for clock snigal

5 - 24V depending on RPM speed (More RPM =
More volts)

Green laser = GearBest XY-016, Will
probably swap for a FastTech module

Six sided polygon mirror (Hexagon)

HP P/N#s
RG5-0449 Laser/Scanner Assembly
RH7-1146 Polygon Mirror

It is basically nothing more than an
HA13480S with an onboard motor and
breakouts for the relevant pins.

Pinout: https://docs.google.com/spreadsheets/d/1giPHY5AjbTY6ZaOmZh_7XAZg6cHTlOTW5V5Ek6vyi4w/edit?usp=sharing
HA13480S Datasheet: http://www.classiccmp.org/rtellason/chipdata/ha13480.pdf
Arduino Code: [C++] Arduino Pot to Frequency - Pastebin.com

The motor doesn't reach normal speed at
1MHz. I suspect the original signal from
the PCA formatter board was in the range of
4 - 8MHz. It still spins fast enough for a
flicker-free liquid sky, though, and noise
will only increase above 1MHz. Both RF and
tah dae earz.

The 2mm pitch connector is hard to find.
ALWAYS save the connector + wiring! This
was the closest thing I could find.

DigiKey - WM19013-ND